28652305 has 16 divisors (see below), whose sum is σ = 37620288. Its totient is φ = 20776000.

The previous prime is 28652297. The next prime is 28652329. The reversal of 28652305 is 50325682.

It is a happy number.

It is not a de Polignac number, because 28652305 - 2³ = 28652297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26475 + ... + 27535.

It is an arithmetic number, because the mean of its divisors is an integer number (2351268).

Almost surely, 2^28652305 is an apocalyptic number.

It is an amenable number.

28652305 is a deficient number, since it is larger than the sum of its proper divisors (8967983).

28652305 is a wasteful number, since it uses less digits than its factorization.

28652305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 28652305 is about 5352.7847892476. The cubic root of 28652305 is about 305.9988928720.

Adding to 28652305 its reverse (50325682), we get a palindrome (78977987).

The spelling of 28652305 in words is "twenty-eight million, six hundred fifty-two thousand, three hundred five".